Myth: Bras with underwire can cause breast cancer
Here’s The Truth
No matter what the type of bra, bras do not cause cancer. Decades ago, there was a rumor that underwire bras restrict the lymph fluid of the breast, which could lead to breast cancer. But there is no evidence to support that wearing an underwire bra or any other type of clothing leads to breast cancer. There is also no evidence to support the idea that going braless reduces the risk of breast cancer.
However, bras that do not fit well can cause discomfort and swelling. Ultimately, it is important to find a bra that fits well and suits your lifestyle, whether you prefer underwires or not.
Sources:
American Cancer Society
American Association for Cancer Research
National Center for Health Research